Skip to product information
1 of 1
Top Street Performance

Chevy Small Block Single-Groove Steel Short Water Pump Pulley - Black

Chevy Small Block Single-Groove Steel Short Water Pump Pulley - Black

SKU: SKU: SP8950BK

Regular price $32.95
Sale price $32.95 Regular price $36.25
Shipping calculated at checkout.

Low stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Single-groove steel pulley for Chevy small block short water pump drives
  • Black finish with 4-bolt mount fits standard short water pump shafts
  • Sized for V-belt small block Chevy accessory drives, not serpentine systems
  • 7.100" OD steel construction holds up to daily street and performance use

Description

This is a single-groove steel pulley with a black finish, built for Chevrolet small block V8 engines running a short water pump and V-belt accessory drive. It bolts to the short water pump's 5/8" pilot bore using the standard 4-bolt mounting pattern, giving you a clean, durable replacement or upgrade pulley for small block Chevy front-drive systems.

This pulley fits Chevrolet small block Gen I engines equipped with a short water pump, a configuration commonly found on early Camaro, Chevelle, Nova, Impala, El Camino, and C10 truck accessory drives, as well as small block engine swaps and street rod builds using a V-belt drive. It is not designed for long water pump configurations or serpentine belt systems — confirm your water pump style and belt system before ordering.

Steel construction with a black finish supports reliable belt tracking and a clean front-drive appearance. Verify groove count, bolt pattern, pulley offset, and belt width before installation. Hardware is not included. Sold individually.

 

Steel Pulley Matched to Small Block Short Water Pump Dimensions
Built from steel with a black finish, this single-groove pulley is sized to the 5/8" pilot bore and 4-bolt pattern used on Chevrolet small block short water pumps, giving you precise belt alignment and a durable replacement for a worn or mismatched pulley.

Proper Pulley Fit Keeps Belt Tracking True and Coolant Flowing
A mismatched water pump pulley can throw off belt alignment, leading to belt slip, noise, and uneven water pump speed — which affects coolant circulation. This pulley's 7.100" outside diameter and single-groove design are matched to small block short water pump specs to help keep belt tracking consistent.

Specs

Pulley StyleV-Belt
Pulley DesignPlain
Groove Quantity1
Water Pump StyleShort
Water Pump Shaft5/8"
Bolt Hole Quantity4
Pulley MaterialSteel
Outside Diameter7.100"
UnderdriveNo
OverdriveNo
Nose CoverNot Included
HardwareNot Included
QuantitySold Individually

Engine Fitment

COMPATIBLE WITH
CHEVY SMALL BLOCK SHORT WATER PUMP ACCESSORY DRIVE APPLICATIONS
• Chevrolet Small Block V8 engines equipped with a short water pump
• V-belt accessory drive systems
• Stock and aftermarket short water pump accessory drives
• Street rod and hot rod applications
• Engine swap applications using a short water pump

COMMON VEHICLE APPLICATIONS
Chevrolet Camaro
Chevrolet Chevelle
Chevrolet Nova
Chevrolet Impala
Chevrolet El Camino
Chevrolet C10 / C/K Series Trucks

NOTES
• Designed for Chevrolet Small Block engines equipped with a short water pump.
• 5/8-inch pilot bore with four-bolt mounting pattern.
• Verify short vs. long water pump configuration before ordering.
• Verify pulley offset, groove alignment, bolt pattern, and belt width before installation.
• Hardware not included.
• Not compatible with long water pump accessory drives.
• Not compatible with serpentine belt systems.

Q&A

Is this for a short or long water pump?
This pulley is designed for short water pump configurations only. It is not compatible with long water pump accessory drives. Verify your water pump style before ordering.

Will this work with a serpentine belt system?
No. This pulley is designed for V-belt accessory drives and is not compatible with serpentine belt systems.

What material is this pulley made from?
This pulley is manufactured from steel and features a chrome finish for durability and a polished appearance.

What Small Block Chevy engines is this pulley designed for?
It is designed for Gen I Chevrolet Small Block V8 engines equipped with a short water pump, including many 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch applications.

Does this include mounting hardware?
No. Mounting hardware is not included.

How do I know if my water pump is short or long style?
Measure the distance from the engine block mounting surface to the pulley mounting flange, or compare your pump to the manufacturer's specifications. Short and long water pumps use different accessory drive offsets and are not interchangeable.

Can this be used on an engine swap or street rod build?
Yes. It is commonly used on Small Block Chevy engine swaps, street rods, hot rods, muscle cars, and custom V-belt accessory drive systems using a short water pump.

What should I verify before installing this pulley?
Verify the bolt pattern, pulley offset, groove alignment, belt width, and water pump style before installation to ensure proper fitment and belt tracking.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.